About

Convert & Calculate is a lightweight collection of unit conversion tools and practical calculators. The goal is simple: fast results, clear explanations, and a clean experience on mobile and desktop.

What you can do here

• Convert common units across length, mass, temperature, pressure, and energy.
• Estimate fuel costs for a trip.
• Estimate electricity usage and cost for an appliance.
• Calculate speed, time, or distance by entering any two values.
• Compute BMI (Body Mass Index) from height and weight.

How accuracy is handled

Conversions are performed using fixed conversion factors and a “through-base” method (convert to a base unit, then to the target). This reduces inconsistencies that can occur when chaining direct conversions. Temperature conversions include the required offsets (for example Celsius ↔ Fahrenheit), not just multipliers.

Important note

The calculators on this site are for general informational and planning purposes. Results can differ from real-world outcomes due to conditions and assumptions (for example driving style, terrain, appliance duty cycle, etc.). If you need certified or safety-critical calculations, use appropriate professional tools and guidance.

Contact

If you spot an error or want to suggest a tool, use the contact page.